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Related Experiment Videos

Hypertensive retinopathy in a cat.

Sherry A Van Boxtel1

  • 1Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1.

The Canadian Veterinary Journal = La Revue Veterinaire Canadienne
|March 26, 2003
PubMed
Summary

Sudden blindness in a cat was caused by hypertensive retinopathy linked to kidney failure from a cyst. The cat unfortunately died shortly after surgery to remove the affected kidney.

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Area of Science:

  • Veterinary Medicine
  • Ophthalmology
  • Nephrology

Background:

  • Systemic hypertension is a common concern in feline medicine, often leading to secondary complications.
  • Ocular manifestations of hypertension can include retinopathy, which may cause sudden vision loss.

Observation:

  • A 12-year-old feline patient exhibited acute blindness.
  • Ophthalmologic and ultrasonic examinations confirmed hypertensive retinopathy.
  • A large intranephric cyst obstructing the right ureter and renal artery was identified as the likely cause of hypertension.

Findings:

  • The cat's sudden blindness was diagnosed as hypertensive retinopathy.
  • Renal failure secondary to ureteral and renal artery obstruction by an intranephric cyst was the presumed etiology of the hypertension.
  • The patient succumbed to complications 8 hours post-unilateral nephrectomy.

Implications:

  • This case highlights the critical link between renal pathology and ocular disease in cats.
  • Early diagnosis and management of hypertension are crucial for preventing severe complications like blindness.
  • Intranephric cysts can present as a significant cause of secondary hypertension and subsequent organ damage in felines.

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